the act of inventing, or framing arguments, of making inductions, and drawing conclusions. See Induction, &c.

Argumentation, according to Cicero, is the delivering or unfolding of an argument.—The matter of arguments is propositions; the form, their due disposition, with regard to one another, so as a conclusion may be drawn from them. See Enthymeme, Proposition, Ratiocination, Sorites, Syllogism, &c.